What is the largest object or set of objects on which a successful quantum transfer has been performed comma and where comma and by whom comma was this accomplished?

The largest successful quantum transfer was achieved with a set of 1,000 atoms in a quantum state in a laboratory at the University of Science and Technology of China in 2020. This experiment demonstrated the transfer of quantum information using entangled photons and is significant for advancements in quantum communication and computing. The research was led by a team including physicist Pan Jianwei.